- HMK
- How to measure displacement angle
How to measure assembly
Specified only if two elbow fitting are used . To measure displacement angle of a hose assembly , point one end of coupling‘1’to a vertical position upward.The angle can then be measured form the centerline of coupling‘1’in a clockwise direction to the centerline of couoling‘2’As shown.

Correct assembly installation
1. Since hose may change in length from -4% to 2% under the surge of high pressure.provide sufficient slack for expansion and contraction.
2. Hose should not be twisted.Hose is weakeded when installed in twisted position.Also pressure in twisted hose tends to loosen fitting connections.Design so that machine motion produces bending rather that twisting.
3. Never use a bending radius less than the minimum shown in the hose specification tables.The bending radius of the hose should be far away from the hose fitting(A>1.5R).
4. Leave proper length when the hose is connected.
5. Hose bending radius is bigger it is motion.
6. Choice proper fittings,avoid too small bending radius and excess force.
7. Choice proper fittings,avoid twisting in hose lines bent in two planes.
8. Choice proper fittings,avoid excessive hose length.
9. Avoid twisting in hose by using clamp properly.
10. Redcue friction,avoid hose touching the object directly or far away from the abject.